ML19254D082

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Forwards Info Requested Re Cost Evaluation Results for Limiting Containment Purge.Further Info Re Operability of Containment Purge Valves Will Be Provided in Near Future
ML19254D082
Person / Time
Site: Farley Southern Nuclear icon.png
Issue date: 10/14/1979
From: Clayton F
ALABAMA POWER CO.
To: Schwencer A
Office of Nuclear Reactor Regulation
References
NUDOCS 7910220343
Download: ML19254D082 (2)


Text

Alabama Power Company 600 North 18th Street Post of* ice Box 2641 Birmingnam. Alabama 35291 Te:ephone 205 323-5341 kkJTc'e' 2ni AlabamaPower A

tM southern etw.trc system October 14, 1979 Director, N.R.R.

Nuclear Regulatory Ccratission Washington, D. C. 20555 Attention: Mr. A. Scimwicer

Dear Mr. Schwencer:

Re: Farley Nuclear Plant Unit-1 (50-348)

Containment Purge Cort Evaluation As verbally requested by your staff, Alabama Power Cctnpany subnits the attached results of a cost analysis of various cases limiting containment purge at Farley Nuclear Plant, Unit-1.

Further information concerning operability of containment purge valves at Farley Nuclear Plant will be provided in the near future.

If you have any questions, please advise.

Yours very truly, h W0lM $

F. L. Clayton, Jr.'

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FIfjr/TNE/mrb Attachment cc: Mr. R. A. Thcx".as Mr. G. F. Trowbridge n9s 074 W s4s 791occ o 3 Y3

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Cwr EvAuarIm RESUurS FOR LIMITING CONIAINENT PURGE Baseline: Unlimited availability of all purge systems.

CASE 1 : All purge is limited to 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> per year in Modes 1, 2, 3 and 4.

CASE 2 : Unlimited mun-purge operation plus 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> per year main purge operation in bbdes 1, 2, 3, and 4.

CASE 3 : All purgirg is limited to a fixed nurber of hours over 102 hours0.00118 days <br />0.0283 hours <br />1.686508e-4 weeks <br />3.8811e-5 months <br /> per year.

CASE 4 : Unlimited mini-purge plus no main purge operation in bbdes 1, 2, 3, and 4.

CASE 5 : No purging in blades 1 - 4.

MAIN PURGE HOURS REQUIRED WITH PIR7f COST DlTFEIEffIAL CASE IN 50 DES 1-4 (dollars / year) 1 102 1,063,000 2 19 106,600 3 102 1,058,200 4 0 220,400 5 0 1,433,200 OC fJ G75 U/-

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